When a busy cloud computing platform crashes, the impact is felt widely. That’s the case with today’s extended outage for Amazon Web Services, which is battling latency issues at one of its northern Virginia data centers. The problems are rippling through to customers, causing downtime for many services that use Amazon’s cloud to run their web services.

The sites knocked offline by Amazon’s problems include social media hub Reddit, the HootSuite link-sharing tool, the popular question-and-answer service Quora, and even a Facebook app for Microsoft (see a full list of affected sites).